Button or stud.



No. 820,682. PATENTBD MAY 15, 1906. I. M. SYLVESTER.

BUTTON 0R STUD.

APPLICATION FILED JUNE 12, 1905,

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IRVING M. SYLVESTER, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO PARKS BROS. & ROGERS, OF PROVIDENCE, RHODE ISLAND, A FIRM.

BUTTON OR STUD.

Patented. May 15, 1 906.

Application filed June 12, 1905- Serial No. 264,843.

To wZZ whom it may concern:

Be it known that I, IRVING M. SYLVESTER, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Buttons or Studs, of which the following is a specification.

This invention has reference to an improvement in buttons or studs, and more particularly to an improvement in the construction of that form of stud known to the trade as pipe-stem studs and used in shirt-'bosoms or other articles of wearing-apparel.

In the usual construction of pipe-stem studs the parts being small and fragile wear quickly, thus allowing the locking bar or slide to gecorne loose and ruin the utility of the stu The object of my invention is to improve the construction of pipe-stem studs, whereby wear on the locking-bar is automatically compensated for and the locking-bar more firmly held in its extended or closed position than has heretofore been done.

My invention consists in the peculiar and novel construction of a pipe-stem stud constructed to have a head, a combined L-shaped tubular shoe and stem secured to the head, a sliding locking-bar in the sleeve, and a springactuated plunger in the stem ada ted to engage with notches in the lockingar, whereby the locking-bar is firmly held in either the extended or closed position and wear between the plunger and the locking-bar automatically compensated for with details of construction, as will be more fully set forth hereinafter. Figure 1 is a face view of my improved pipestem stud, showing the locking-bar in the extended position. Fig. 2 is a side view of the stud with the locking-bar in the extended position. Fig. 3 is an enlarged sectional view taken lengthwise through the stud, showing a flattened portion extending lengthwise of the locking-bar, notches in the flattened portion, and the spring-actuated plunger engaging with a notch in the locking-bar to hold the same in the extended position. Fig. 4 is an enlarged transverse sectional view through the locking-bar, taken on line X X of Fig. 3. Fig. 5 is a sectional view, similar to Fig. 3, of a modified form of stud, showing a groove extendinglengthwise in the locking-bar, notches in the bottom of the groove and a teat on the spring-actuated plunger adapted to engage with a notch and hold the locking-bar in the extended or closed position. Fig. 6 is an enlar ed transverse sectional view through the loc ng-bar, taken on line Y Y of Fig. 5. Fig. 7 is a sectional view, similar to Fig. 3, of a still further modified form of stud, showing the notches in the round locking-bar in the form of annular grooves, the spring-actuated plunger being adapted to engage with an annular groove and hold the locking-bar in either the extended or closed position; and Fig. 8 is an enlarged transverse sectional view through the locking-bar and spring-actuated plunger, taken on line Z Z of Fig. 7.

In the drawings, a indicates the head, I) the tubular stem, 0 the tubular shoe, d the locking-bar, e the plunger, and f the coiled spring of my improved pipe-stem stud.

The head a may be of any material or design and secured to the stem 1) in any wellknown way. In the drawings, the head a has the undercut recess a in the back. cupped disk a is secured to the head by expanding the rim of the disk into the recess a in the head, and the disk 00 secured to the open end of the stem 1) by solder.

The tubular stem 1) and tubular shoe 0 are formed integral of hollow wire bent L shape, as shown in Fig. A hole 0 is now formed in the bend for the locking-bar d, which is held in the shoe 0 and extends through the hole 0 when the bar is in its extended position.

The locking-bar (Z is formed of a round rod constructed to have the rounded end d, the longitudinal flattened surface d in which are the notches d and d, and the usual pointed end (1 to facilitate the entering of the shoe. 0 into a stud or buttonhole.

The plunger e is constructed to have a sliding fit in the hollow stem b and is held in frictional contact with the locking-bar d by the coiled spring f, which is interposed between the disk a and the plunger 6 in the stem b, as shown in Fig. 3.-

In the modified form shown in Fig. 5 a longitudinal groove (1 is substituted for thefiat surface (1 the notches d and (1, formed by indentures in the bottom of the groove, and a teat 6, adapted to enter the groove and engage with the indentures, is formed on the end of the plunger 6, and in the still further modified form shown in Fig. 7 the flat surface or groove is dispensed with, the notches d and (1 formed by annular grooves in the round locking-bar d, and a semicircular concaved rib e adapted to engage with an annular groove in the locking-bar, is formed on the end of the plunger 6, as shown in Fig. 8.

In the use of my improved stud the locking-bar d is pushed through the shoe 0 until the plunger e snaps into the notch (1 The bar is now held in the closed position by the plunger 6 through the tension of the coiled spring The pointed end (P, shoe 0, and stem f are now pushed through the stud or buttonhole in the shirt-bosom and the locking-bar d pushed through the shoe 0 in the opposite direction (on the back of the shirtbosom) until the plunger 6 snaps into the notch (1, thus holding the bar in the extended position and locking the stud to the shirtbosom. The notches (Z and d are of sufficient depth to require considerable exertion to force the plunger 6 out of the notch against the tension of the coiled spring f, and by the tension of the coiled spring f wear between the locking-bar d and the plunger 6 is automatically compensated for.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. A stud comprising a head, a tubular L- shaped stem and shoe formed integral with one another and secured to said head, said stem being formed with an opening 0, adj acent its juncture with the shoe, a locking-bar slidably mounted in the shoe, said lockingbar having a pointed end projecting beyond the end of the shoe and having its other end projecting through opening 0, said bar having a longitudinal flattened surface formed with notches, a plunger slidably mounted in the stem and having its end shaped to engage in said notches of the bar, and a coil-spring seating on the end of the plunger and engaging said head.

2. A stud consisting of an integral tubular L-shaped shoe and stem, said shoe being formed with an opening adjacent its juncture with the stem, a disk having its base projecting in said stem and closing the end thereof, a head secured to the disk, a notched lockingrod in the shoe having its end projecting through said opening, a plunger of slightly less cross-section than the inner circumference of said stem slidably mounted in said stem and having its end shaped to engage in said notches of the locking-rod, and a coilspring seating on the opposite end of said plunger and abutting said projecting portion of the disk.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

IRVING M. SYL-VESTER.

Witnesses:

ADA E. HAGERTY, J. A. MILLER, Jr. 

